Physics: Post your doubts here!

[Zaki ali asghar]

a proportion of output voltage is fed back to the inverting input as to reduce the gain. is this correct for worth 2 marks? negative feedback

 

[Minsa Fatima]

a proportion of output voltage is fed back to the inverting input as to reduce the gain. is this correct for worth 2 marks? negative feedback

with 180 degree phase differene. it was mentioned in a mark scheme of a previous paper

 

[anastasia grey113]

there was a q for negative feedback too, right?

yh the Vout is fed to the inverting input to increase stability

a proportion of output voltage is fed back to the inverting input as to reduce the gain. is this correct for worth 2 marks? negative feedback

yh i think its correct
tho idk abt reducing gain since this was asked in the next part

 

[anastasia grey113]

with 180 degree phase differene. it was mentioned in a mark scheme of a previous paper

well inverting kind of means 180 phase difference aint it?

 

[Zaki ali asghar]

wasn't increased stability an advantage?

 

[Tauqir_hamed]

with 180 degree phase differene. it was mentioned in a mark scheme of a previous paper

Is this correct. I wrote this line :
" The process in which a part of the output is fed into the inverting input and the input and the output are out of phase by 180 degrees "

And for the effects , I wrote :

a) Reduced gain
b) Lesser distortion

 

[Zaki ali asghar]

did you get T1 in shm as 0.429?

 

[anastasia grey113]

wasn't increased stability an advantage?

reduced gain was an advantage too

 

[anastasia grey113]

Is this correct. I wrote this line :
" The process in which a part of the output is fed into the inverting input and the input and the output are out of phase by 180 degrees "

And for the effects , I wrote :

a) Reduced gain
b) Lesser distortion

yh it should be

 

[anastasia grey113]

damn i didnt write 'part of the Vout' i just wrote Vout is fed
will i lose a mark?

 

[Tauqir_hamed]

did you get T1 in shm as 0.429?

Yess.. 0.43 s

 

[anastasia grey113]

did you get T1 in shm as 0.429?

yh
0.435 i think
i dont remember but it was something like that

 

[Tauqir_hamed]

WHAT DID YOU GUYS DO ? I DID T + (0.5 T ) .. THAT GAVE ME 0.43

 

[Zaki ali asghar]

(part of) the output is added to /returned to / mixed with the input

and is out of phase with the input / fed to inverting input
this is what the ms says. i think u'll get 2/2

 

[Zaki ali asghar]

the time period was for 8 boxes i think and we had to look at 12 .

 

[anastasia grey113]

(part of) the output is added to /returned to / mixed with the input

and is out of phase with the input / fed to inverting input
this is what the ms says. i think u'll get 2/2

OH THANK GOD

 

[anastasia grey113]

the time period was for 8 boxes i think and we had to look at 12 .

YH
had to multiply the time period with 1.5

 

[anastasia grey113]

hey y r computers required in CAT?
i wrote cuz they process and store such a large number of images so greater memory require and also display them

 

[Zaki ali asghar]

i wrote that computers processes the 2d images from slices to give a three dimensional image of the structure.

 

[anastasia grey113]

i wrote that computers processes the 2d images from slices to give a three dimensional image of the structure.

yh i wrote this two
exceeded the lines lol
but they mentioned 'why with a large memory' so i wrote abt that too